Question

A wave travelling along a string is given by y(x,t)=0.005 sin(80x-3t) where the numerical values are in SI units .calculate velocity of the wave

Answer 1

Comparing the given equation with standard equation,
Y = Asin(wt - Kx)
we get
A = -0.005
w (omega) =3
k (propagation constant) =80
therefore Velocity = w/k = 3/80 m/s = 0.3m/s
[pls verify the answer]